diff --git a/src/memos/api/handlers/formatters_handler.py b/src/memos/api/handlers/formatters_handler.py
index ca87d95d2..11a1ef71b 100644
--- a/src/memos/api/handlers/formatters_handler.py
+++ b/src/memos/api/handlers/formatters_handler.py
@@ -180,8 +180,8 @@ def rerank_knowledge_mem(
 
     knowledge_mem, conversation_mem = separate_knowledge_and_conversation_mem(memories_list)
     knowledge_mem_top_k = max(int(top_k * file_mem_proportion), int(top_k - len(conversation_mem)))
-    reranked_knowledge_mem = reranker.rerank(query, knowledge_mem, top_k=len(knowledge_mem))
-    reranked_knowledge_mem = [item[0] for item in reranked_knowledge_mem]
+    # rerank set unuse
+    reranked_knowledge_mem = knowledge_mem
 
     # TODO revoke sources replace memory value
     for item in reranked_knowledge_mem: